Melissa Ditmore is the author of Unbroken Chains: The Hidden Role of Human Trafficking in the American Economy. She is a consultant specializing in issues of gender, development, health and human rights. She holds a PhD in sociology from the City University of New York and has published several previous books on sex work and prostitution. Her consulting clients have included the United Nations, the US Agency for International Development, and the Hilton Foundation. Her writing has also appeared in outlets such as HuffPost, The Guardian, and the Daily Beast.